题型：问答题 简答题 完形填空。 Tom __1__ a very good student, and he __2__ doing homework, because he liked __3__ other things in his free time. Usually he didn’t do __4__ homework, and when he did it, he always made __5__ mistakes. Then one day, his maths teacher looked __6__ Tom’s homework and found that he had done __7__ right. He was very happy and very surprised. He asked Tom to his desk and __8__ to him, "You have done all your homework right this time, Tom. __9__ your father help you?" Usually Tom’s father did help him with his homework, but this time he didn’t, because he was not at home. Tom answered, "No, sir. He was busy last night, so I had to do it all _10__ myself." ( )1. A. am not ( )2. A. doesn’t ( )3. A. do ( )4. A. his ( )5. A. a lot ( )6. A. up ( )7. A. all his homeworks ( )8. A. say ( )9. A. Did ( )10. A. to B. was not B. don’t like B. does B. him B. much B. at B. all homeworksB. says B. did B. by C. were not C. didn’t like C. did C. he C. any C. after C. all his homeworkC. said C. Was C. for D. are not D. didn’t D. to do D. her D. a lot of D. for D. all the homework D. saying D. Were D. at 查看答案
题型：问答题 简答题 墙体宽度为b、基底宽度为B的刚性条形基础，基础最小高度的计算式是：（）A.（B-B.／2tanαB.［（B-B./2tanα］+0.1mC.（B-B.／tanαD.［（B-B.／tanα］+0.1m 查看答案